Event Notification Report for September 29, 2023
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
09/28/2023 - 09/29/2023
Agreement State
Event Number: 56767
Rep Org: Virginia Rad Materials Program
Licensee: ECS Mid-Atlantic, LLC
Region: 1
City: Salem State: VA
County:
License #: 770-314-5
Agreement: Y
Docket:
NRC Notified By: Sheila Nelson
HQ OPS Officer: Sam Colvard
Licensee: ECS Mid-Atlantic, LLC
Region: 1
City: Salem State: VA
County:
License #: 770-314-5
Agreement: Y
Docket:
NRC Notified By: Sheila Nelson
HQ OPS Officer: Sam Colvard
Notification Date: 09/29/2023
Notification Time: 18:43 [ET]
Event Date: 09/29/2023
Event Time: 09:30 [EDT]
Last Update Date: 10/02/2023
Notification Time: 18:43 [ET]
Event Date: 09/29/2023
Event Time: 09:30 [EDT]
Last Update Date: 10/02/2023
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
10 CFR Section:
Agreement State
Person (Organization):
Lally, Christopher (R1DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
Lally, Christopher (R1DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)
AGREEMENT STATE REPORT - DAMAGED MOISTURE DENSITY GAUGE
The following report summary was received by email from Virginia Radioactive Materials Program (VRMP):
"On September 29, 2023, at approximately 0930 EDT, a Troxler moisture density gauge (model number: 3430, serial number: 32732, 8 mCi Cs-137, 40 mCi Am-241:Be) was struck by a bulldozer while the rod was extended out into the soil for measurements. The area was secured. The gauge was left in place so that the source would remain shielded by the soil and the radiation safety officer (RSO) was notified. The impact cracked the plastic housing and significantly bent the source rod handle above the gauge. The RSO verified that the source rod below the gauge was still intact. They were unable to get the source to retract. With the source inserted back into the soil, survey readings were obtained by the licensee as follows: 1 mR/hr on top of the gauge on contact; @ 5 ft away to the side 0.1 mR/hr.
"According to the RSO, no public exposure occurred. The licensee has fitted a lead pig [lead shielded container] around the source for transport to a licensed nuclear gauge service company."
Virginia Event Report ID Number: VA230002
The following report summary was received by email from Virginia Radioactive Materials Program (VRMP):
"On September 29, 2023, at approximately 0930 EDT, a Troxler moisture density gauge (model number: 3430, serial number: 32732, 8 mCi Cs-137, 40 mCi Am-241:Be) was struck by a bulldozer while the rod was extended out into the soil for measurements. The area was secured. The gauge was left in place so that the source would remain shielded by the soil and the radiation safety officer (RSO) was notified. The impact cracked the plastic housing and significantly bent the source rod handle above the gauge. The RSO verified that the source rod below the gauge was still intact. They were unable to get the source to retract. With the source inserted back into the soil, survey readings were obtained by the licensee as follows: 1 mR/hr on top of the gauge on contact; @ 5 ft away to the side 0.1 mR/hr.
"According to the RSO, no public exposure occurred. The licensee has fitted a lead pig [lead shielded container] around the source for transport to a licensed nuclear gauge service company."
Virginia Event Report ID Number: VA230002
Part 21
Event Number: 56764
Rep Org: Flowserve
Licensee: Flowserve
Region: 1
City: Lynchburg State: VA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: Christopher Shaffer
HQ OPS Officer: Lawrence Criscione
Licensee: Flowserve
Region: 1
City: Lynchburg State: VA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: Christopher Shaffer
HQ OPS Officer: Lawrence Criscione
Notification Date: 09/29/2023
Notification Time: 08:36 [ET]
Event Date: 09/29/2023
Event Time: 00:00 [EDT]
Last Update Date: 11/17/2023
Notification Time: 08:36 [ET]
Event Date: 09/29/2023
Event Time: 00:00 [EDT]
Last Update Date: 11/17/2023
Emergency Class: Non Emergency
10 CFR Section:
21.21(a)(2) - Interim Eval Of Deviation
10 CFR Section:
21.21(a)(2) - Interim Eval Of Deviation
Person (Organization):
Lally, Christopher (R1DO)
Miller, Mark (R2DO)
Orlikowski, Robert (R3DO)
Young, Cale (R4DO)
Part 21/50.55 Reactors, - (EMAIL)
Lally, Christopher (R1DO)
Miller, Mark (R2DO)
Orlikowski, Robert (R3DO)
Young, Cale (R4DO)
Part 21/50.55 Reactors, - (EMAIL)
EN Revision Imported Date: 11/20/2023
EN Revision Text: PART 21 INTERIM REPORT - DEVIATION ASSOCIATED WITH AN SMB-1 GEARED LIMIT SWITCH ASSEMBLY
The following information was provided by Flowserve via phone and email:
"The purpose of this letter is to provide written notification of an evaluation of a deviation in a basic component in accordance with 10 CFR21.21(a)(2). This interim report pertains to actuator geared limit switch assemblies contained in SMB-1 actuators supplied to Bopp & Reuther Valves for use in safety related applications at Bruce Nuclear Generating Station.
"Flowserve - Limitorque was contacted by Bruce Power who reported a malfunction of an actuator geared limit switch (GLS) assembly which occurred while attempting to set the valve travel position limits prior to placing the actuator into service. Site inspections of the GLS assembly revealed damage to the GLS drive pinion which engages with the actuator drive train. Site photos and dimensional measurements of the drive pinion requested by Flowserve indicate that the GLS was assembled with an incorrect drive pinion resulting in the malfunction. Use of an incorrect subcomponent in the assembly constitutes the deviation to the design being evaluated. The actuator GLS assembly is a safety related component. A malfunction of the GLS in service has the potential to affect the safety function of the actuator.
"The assembly containing the deviation is a 4-train geared limit switch (GLS) assembly part number 10168 supplied in SMB-1 actuators manufactured on Flowserve order 175377.001 Three actuators (serial numbers L1226986, L1226987, & L1226988) were shipped to Bopp & Reuther Valves on 2/4/2020.
"Flowserve's evaluation of this issue is ongoing and will not be completed within 60 days. The evaluation is expected to be completed by 11/17/2023 pending return of the affected components to Flowserve for inspection. Questions concerning this notification can be directed to Chris Shaffer, Quality Manager."
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
This issue was identified at a Canadian reactor plant owned by Bruce Power. The Quality Manager at Flowserve is not currently aware of any affected US reactor plants.
* * * UPDATE ON 11/17/2023 AT 0914 EST FROM CHRISTOPHER SHAFFER TO ERIC SIMPSON * * *
Flowserve Quality Assurance Manager submitted the Final Part 21 Report pertaining to a deviation in a basic component in accordance with 10 CFR 21.21(a)(2). The report concluded that the evaluated deviation constitutes a reportable defect affecting three actuators listed in the final report.
Notified R1DO (Defrancisco), R2DO (Miller), R3DO (Feliz-Adorno), R4DO (Vossmar), and Part 21 Reactors (email).
EN Revision Text: PART 21 INTERIM REPORT - DEVIATION ASSOCIATED WITH AN SMB-1 GEARED LIMIT SWITCH ASSEMBLY
The following information was provided by Flowserve via phone and email:
"The purpose of this letter is to provide written notification of an evaluation of a deviation in a basic component in accordance with 10 CFR21.21(a)(2). This interim report pertains to actuator geared limit switch assemblies contained in SMB-1 actuators supplied to Bopp & Reuther Valves for use in safety related applications at Bruce Nuclear Generating Station.
"Flowserve - Limitorque was contacted by Bruce Power who reported a malfunction of an actuator geared limit switch (GLS) assembly which occurred while attempting to set the valve travel position limits prior to placing the actuator into service. Site inspections of the GLS assembly revealed damage to the GLS drive pinion which engages with the actuator drive train. Site photos and dimensional measurements of the drive pinion requested by Flowserve indicate that the GLS was assembled with an incorrect drive pinion resulting in the malfunction. Use of an incorrect subcomponent in the assembly constitutes the deviation to the design being evaluated. The actuator GLS assembly is a safety related component. A malfunction of the GLS in service has the potential to affect the safety function of the actuator.
"The assembly containing the deviation is a 4-train geared limit switch (GLS) assembly part number 10168 supplied in SMB-1 actuators manufactured on Flowserve order 175377.001 Three actuators (serial numbers L1226986, L1226987, & L1226988) were shipped to Bopp & Reuther Valves on 2/4/2020.
"Flowserve's evaluation of this issue is ongoing and will not be completed within 60 days. The evaluation is expected to be completed by 11/17/2023 pending return of the affected components to Flowserve for inspection. Questions concerning this notification can be directed to Chris Shaffer, Quality Manager."
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance:
This issue was identified at a Canadian reactor plant owned by Bruce Power. The Quality Manager at Flowserve is not currently aware of any affected US reactor plants.
* * * UPDATE ON 11/17/2023 AT 0914 EST FROM CHRISTOPHER SHAFFER TO ERIC SIMPSON * * *
Flowserve Quality Assurance Manager submitted the Final Part 21 Report pertaining to a deviation in a basic component in accordance with 10 CFR 21.21(a)(2). The report concluded that the evaluated deviation constitutes a reportable defect affecting three actuators listed in the final report.
Notified R1DO (Defrancisco), R2DO (Miller), R3DO (Feliz-Adorno), R4DO (Vossmar), and Part 21 Reactors (email).